() Using a calculator or computer, generate a graph like the one shown below by graphing y=216+8 -8 and y = 2x for -121. (What is the relationship between y = 216+ 8x - 8 and y = 2x?) Use your graph to estimate to one decimal place the (largest) magnitude of the error in approximating 2/16+8 -8 by 2x for -1x1. error Is the approximation an over- or an underestimate when > 0? (Enter over, or under.)